Both of those diseases are spread by spores. Extreme heat is what is need to kill that. I would be more likely to throw the hive tool in the smoker and crank it up if your worried. If you stay in your own apiary with your tools and equipment you likely won't have to worry unless you see an out break of either.

Sorry Ken I did not read your whole post... as you hit the hive tool. If you have problems in a particular hive or yard take precautions yes. And don't allow any other beekeeper to work your hives with their equipment including gloves if applicable as I am sure you would not theirs.

Although rubbing alcohol doesn't work for AFB is is a really good hand cleaner for sticky propolis

I carry little individual wrapped pads that folks normally buy for using hypodermic needles. I use them on occasion before I get into my truck to avoid getting propolis on my steering wheel, shifter, seat belt and cell phone. It saves time in the long run if my hands are particularly sticky.